Water-heater.



WiTNEssE- l;

No. 784,964. PATENTED MAR. 14', 1905. W. S. ROATH.

WATER HEATER.

APPLGATION FILED snmzs. 1904.

z u, s SHEETS-SHEET 1.

mi mm INVENTOR jaw/5514 m BY ATTORNEY PATENTED MAR. 14, 1905.

.` S. ROATH.

WATER HEATER.

APPLIUATIoNjILBD sEPT-28, 1904.

3 SHEETS-SHEET 2.

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'TTORNEY I NVENTO 5.5? @Q3/2.,

`No. 784.964. PATBNTED MAB; 14, 1905.

` W.- s. ROATH.

WATER HEATER,

APPLIOATIGN FILED sEPnzs. 1904.

3 SHEETS-SHEET 3. y

WITNESSES INVENTOR yay/M2M 'l wwf/M5510@ l BY WTORNW `latented. March14, 1905.

PATENT OEEICE.

WILLIAM -SVROATH, OF CANTON, OHIO.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 784,964, dated March14, 1905. Application filed September 28, 1904. Serial N0. 226,304.

To all whom, it nur/y concern:

Be it known that 1, lVILLIAM S. ROATH, of the city of Canton, county ofStark, and State of Ohio, have invented new and useful lmprovements inrater-Heaters, of which the following is a specification.

The invention relates to water-heaters made of a series of verticalsections assembled side by side; and the principal objects of theimprovements are to arrange the waterways so as to present the maximumheating-surface with reference to the grate area; to carry thelire-gases without separation along the waterways and not across them inthe first instance and then to accumulate the gases in a commonsuperheating-chamber around the water-tubes above thc smoke-Hue topermit a complete combustion; to arrange the waterwaysfso the heatedwater will travel in one direction only from the several locations tothe top of the heater to create a free and delinite circulation; todirectly join the sections by nipples at the lowest and highest points,so water of different temperatures will iiow freely and equalize betweenthe several sections, and to construct and arrange the parts so that allthe heating-surfaces can be readily reached for cleaning. These objectsand other minor ones are attained by the construction and arrangementillustrated in the accompanying drawings, in which Figure l is a sideelevation of an intermediate section of the heater with the adjacent andadjoining parts thereof in section;- Fig. 2, a front elevation of aheater made of three intermediate and two side sections with partsbroken away to show some details in' crosssection; Fig. 3, a verticallongitudinal -section of one of the intermediate sections; Fig. 4, a

section of the heater on line 4 4, Fig. 1; Fig.

, a section of the heater online 5 5, Fig. l; Fig. 6, a fragmentary sideView showing an alternate way of connecting the smoke-pipe to thebreeching; Fig. 7, a detached perspective view of the middleintermediate section, and Fig. S a similar view of one side section withparts broken away to show some details in section.

Similar numerals refer to similar parts throughout the drawings Theintermediate sections l and l are each provided with an exteriorwaterway forming a rim for the section, which rims when abuttedlaterally constitute the back, top, and, above the {ire-box 2, the frontof the heater. Each exterior way comprises the stemway 3, extendingalong the back of the fire-box, the back way 4, preferably extending'first rearward and then directly upward along' the back of the heater,the top way 5, inclining along the top of the heater from the rear wayupward to about the middle, thence downward to the front thereof, andthe front way 6, extending directly downward along the front of theheater to the top of the fire-box. ln the lower Aend of each stemway areprovided the lateral apertures 7, and in the middle and highest part ofeach top way are provided the similar lateral apertures 8, in whichapertures the nipples 9 are inserted when the sections are broughttogether, thus making two continuous lateral channels, one at the bottomand one at the top of the heater, by means of which channels the watercan circulate freely from one section to another. One or more of theintermediate sections is provided with an inlet-aperture l() in the backwall of the stemway, preferably opposite the nipple-apertures, in whichinlet-aperture is connected the inlet-pipe 1l for the return of thecolder water from the heating system, (not shown,) and also with anoutlet-aperture l2 in the top wall of the top way, at the highest partthereof, in which aperture is connected the outlet-pipe 13 for the iiowof heated water into the heating system.

The interior waterways comprise the tubeways 14, 14, and 14b and thebaiile-ways l5 and 16, which are inclined upward and forward andcommunicate from the back way to either thel front way or top way, asillustrated. The tubeways are formed less in diameter than the width ofthe exterior ways, so that when the sections are assembled there isquite an interval between the tubeways. The baliieways, however, are ofthe same width as the exterior ways, so that these ways abut side byside when thesections are assembled and constitute twolaterally-continuous baffle-walls l5n and 16. The rear ends 15b of thelower IOO - plate for cleaning the same.

baffle-ways 15 are reduced to the width of the tubeways, so that thelire gases can pass around the rear ends of the baille-wall 151L andthrough the intervals thus formed, and the forward ends 16" of the upperba'flie-ways 16, together with the considerable portion 6L of the frontways 6 above the lower balile-plate, are reduced to the width of thetubeways, so that the fire-gases can pass around the forward end of thebaille-wall 16lL through the intervals thus formed. The doors 17 arehinged on the front of the heater and normally close the intervals inthe Vfront wall; but when these doors are opened these intervals giveaccess to all the heating-surfaces of the several tubes and baille-waysabove the lower baffle- The heatingsurfaces below the lower bathe-platecan be readily reached from the lire-box. rlhe parts 11 of the back waysnear and above the upper baffle-ways are reduced to the width of thetubeways, and the intervals between these reduced parts make an outletfor the smoke and other products ot' combustion. The breeching 18 isattached to the back of the heater, so as to cover all the slnokeintervals in the back, and by attaching the reducing-elbow 19, as shownin Figs. 1 and 5, the smoke-pipe 2O can be directed upward, or byattaching it as shown in Fig. 6 the smoke-pipe can be directed rearward.

Each side section 21 is formed with one half just like the adjoiningintermediate section, and the several tu bes and baffle-ways areconnected in their middle lines by the short partitions 22, from whichpartitions the outer walls 23 of the side sections and of the heater arespaced at an interval to form the side ways 211, which extend over theentire sides of the heater. The side sections and side ways are extendeddownward and 'forward to 'form the side walls of the lire-box, and it ispreferred to connect the lower forward corner of these sections by thecrossway 26, having con'nnunicating nipples, as at 27. The sections ofthe heaters are held together by the tie-rods 28 passed tln'ough thelugs 29 on the side sections, and the door 30 is hinged on the front ofthe heater to close the lireboX. The heater thus assembled is preferablyset on a suitable base, as 31, which forms an ash-pit, and the bottom ofthe lire-box is provided with the usual grate-bars 32.

When the gases rise from the lire,they travel iii-st upward and backwardalong' and around the tubes 14, being so diverted by the baffleplate 15,thence upward around the reduced rear ends 15" of the baille-ways andforward along and around the tubeways 141, being so diverted by thebaffle-plate 16, thence upward along and around the reduced parts 6 ofthe front ways and the reduced forward ends 16b of the baffle-ways 16into the superheating chamber formed by the intervals around thetubeways 14h. The gases then travel backward along and around thetubeways 14Cb to the smoke intervals between the reduced parts 1-1 ofthe back ways and on through the breeching and smoke-pipe. As thelire-gases travel through the heater they are not separated at any pointexcept as they surround the various tubeways, and as a result they arefree to mingle and combine in the proper proportions for completecombustion. rlhis is specially true of that part ofthe heater above thesmoke-apertures, wherein unburned gases are retained until properproportions are present to cause complete combustion, and for thisreason this chamber is well named a superheating chamber. Gases are thusutilized which would ordinarily pass out unburned through the smokepipe.

As the water is heated in the several interior ways it naturally iiowsupward and forward to the 'front ways, thence upward in the Jfront waysand rearward in the forward part of the top ways to the highest partsthereof, from which it passes upward into the heating system through theoutlet-pipes. The cooled water in the heating system naturally Howsdownward and enters the heater through the inlet-pipes into the lowerends of the stemways, vfrom which it ascends, some of it through theback ways, and passes into the rear lower ends of the interior ways. Thecooler water within the heater naturally flows downward to and throughthe back ways until water of equal temperature is reached, which isjoined, and the upward Aforward flow through the inter ways is resumed.

NVhat I claim as my invention, and desire to secure by Letters Patent,is4

l. A water-heater comprising a series of vertical sections betweenwater-containing side sections, the intermediate sections having'laterally-abutting waterways forming the back, top and front of theheater, the top ways being inclined upward from front and rear to themiddle, abutting baffle-ways communicating' and inclined upward Yfromthe back to the front ways, and similarly communicating and inclinedtubeways at intervals apart, and below, between and above thebaffle-ways, the alternate ends of the bafHeways being' red uced inwidth to make intervals therebetween 'for the passage of lire-gases, andparts of the back ways near and above the Lipper battle-ways beinglikewise reduced to make intervals therebetween for smoke-outlets, andthe parts of the front ways abovethelower battle-ways being' likewisereduced to make intervals for cleaning', there being' communicatingapertures between the upper parts of the top ways and the lower ends ofthe back ways, and inlet and outlet pipes connected in the lowest andhighest parts of the waterways.

2. A water-heater comprising a series of vertical sections betweenwater-containing side sections, the intermediate sections having lOO IlO

Y laterally-abutting waterways forming the back, top and front of theheater, the top ways being inclined upward from front and rear to themiddle, abutting baiile-ways communicating and inclined upward from theback to the front ways, and similarly communicating and inclinedtubeways at intervals apart, and below, between and above thebaffle-ways, the alternate ends of the halide-ways being reduced inwidth to make intervals therebetween for the passage of tire-gases, andparts of the back ways near and above the upper baffle-ways beinglikewise reduced to make intervals therebetween for smoke-outlets, therebeing' communicating' apertures between the upper parts of the top waysand the lower ends ot' the back ways, and inlet and outlet pipesconnected in the lowest and highest parts of the waterways.

3. A water-heater comprising' a series of vertical sections betweenwatercontaining side sections, the intermediate sections havinglaterallyabutting waterways forming' the back, top and front of theheater, the top ways being inclined upward from front and rear to themiddle, abutting' baiiie-ways communicating' and inclined upward fromthe back to the front ways, and similarly communicating and inclinedtubeways at intervals apart, and below, between and above thebaille-ways, the alternate ends of the battle-ways being reduced inwidth to make intervals therebetween for the passage of lire-gases, andparts of the back ways near and above the upper baii'le-ways beinglikewise reduced to make intervals therebetween for smoke-outlets, therebeing inlet and outlet pipes connected in the lowest and highest partsof the waterways.

4L. A water-heater comprising a series of vertical sections betweenwatercontaining side sections, the intermediate sections havinglaterally abutting' waterways forming' tne back, top and front of theheater, the top ways being inclined upward from front and rear to themiddle, abutting haiile-ways communicating and inclined upward from theback to the front ways, and similarly communicating and inclinedtubeways at intervals apart, and below, between and above thebaffle-ways, the alternate ends ofthe baflie-ways being reduced in widthto make intervals therebetween for the passage of tire-gases, and partsot' the back ways near and above the upper baflie-ways being likewisereduced to make intervals therebetween for smoke-outlets.

5. A water-heater comprising a series of vertical sections betweenwater-containingside sections, the intermediate sections havinglaterally-abutting waterways forming the back, top and front of theheater, alternating adjacent tubeways and abutting baffle-ways with aseries of adjacent tubeways thereabove all communicating and inclinedupward from the back to the front ways, the alternate ends of thebaiiie-wajy's and parts of the back ways near and above the upperbaliie-ways being reduced in width to make intervals therebetween i'orthe passage of fire-gases and smoke.

6. A water-heater comprising a series of 4vertical sections betweenwater-containing side sections, the intermediate sections havinglaterally-abutting' waterways forming the back, top and front oftheheater, a series of abutting baliie-ways with a series of adjacenttubeways thereabove all communicating' and inclin ed upward from theback to the front ways, the alternate ends of the baffle-ways and partsof the back ways near above the upper baiileways being reduced in widthto make intervals therebetween for the passage of tire-gases and smoke.

7. In a sectional water-heater, a bathe-plate inclined upward andforward from the back with intervals at the forward end for the passageot' tire-gases, and a g'as-retaining chamber above the baffle-platehaving a series of adjacent and similarly-inclined tubeways therein,there being a smoke-outlet in the back from the lower part of thechamber.

8. In a sectional water-heater, a vertical section having back, top andfront waterways, the top way being inclined upward from front and rearto the middle, baiiie-ways communieating and inclined upward from theback to the front ways, and similarly communicating and inclinedtubeways at intervals below, between and above thel baffle-ways, thealternate ends ofthe baffle-ways being reduced in width.

9. In a sectional water-heater, a vertical section having back, top andfront waterways, bathe-ways communicating and inclined upward from theback to the front ways, and similarly communicating and inclinedtubeways at intervals below, between and above the baffle-ways, thealternate ends of the baffleways being reduced in width.

In testimony whereof I have hereunto signed my name to thisspecification in the presence ot' two subscribing witnesses.

vWILLIAM S. ROATH.

lVitnesscs:

MINNIE F. ANTHONY, HARRY FREASE.

IOO

